With an increase in the thickness of
insulation around a circular pipe, heat loss to surroundings due to________ .
एक वृत्ताकार पाइप के चारों ओर इन्सुलेशन की मोटाई में वृद्धि के साथ, ________ के कारण आसपास के वातावरण में ऊष्मा का नुकसान होता है।
convection increases, where as due to conduction decreases
convection decreases, whereas due to conduction increases
both convection and conduction
decreases
both convection and conduction
increases
convection increases, where as due to conduction decreases
With an increase in the thickness of
insulation around a circular pipe heat loss to surrounding due to convection
increases and due to conduction decreases.
When adding
insulation, conduction thermal resistance increases 
And convection thermal resistance
decreases
Hence, heat loss due to conduction
decreases and heat loss due to convection increases.
Hence, the correct option is (A).
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